Salem, Inc. makes two products with the following data: Product A Product B $70/unit $170/unit Sales price per unit Variable cost per unit $50/unit $70/unit Salem can make six units of Product A per machine hour, and it can make four units of Product B per machine hour. The firm's production capacity is 1,600 machine hours per month, and it can sell as many units of either product as it can make. How many units of each product should Salem produce in a month to maximize profits? (Round machine hour per unit to two decimal places and your final answer to the nearest whole dollar.) A. 9,600 units of Product A and no units of Product B . No units of Product A and 6,400 units of Product B C 6,400 units of Product A and 4,800 units of Product B D 4,800 units of Product A and 3,200 units of Product B